Manitowoc STH042 4/16, Technician'S Handbook

Page: 102 / 146

102 Part Number STH042 4/16
Touch Pad
Function
User interface to select ice making, delay start or cleaning
cycle and provides feedback on ice machine operation.
Check For Normal Operation
Action Normal Function
Press and hold the control
board test button for
3 seconds
All Touch Pad lights turn on
Press test button All Touch Pad lights turn off
Press power button Power light turns on
With power light energized
press the delay button 4 times
Cycles through 4 hour delay,
12 hour delay, 24 hour delay
and off
Press and hold the power
button for 3 seconds
Power light turns off
Press and hold the clean
button for 3 seconds
Clean light turns on
Press and hold the clean
button for 3 seconds
Clean light turns off
If any switches do not operate correctly, disconnect main power
to the ice machine to reset the control board and perform a
second test. If the second test doesn’t show normal function,
perform the Ohm test to verify the issue is not a wiring or
control board issue.